SOLUTION: The perimeter of a triangle is 126 centimeters. If two sides are equally long and the third side is 9 centimeters longer than the​ others, find the lengths of the three sides
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Question 1107288: The perimeter of a triangle is 126 centimeters. If two sides are equally long and the third side is 9 centimeters longer than the others, find the lengths of the three sides.
The length of each of the two equal sides is
___ centimeters.
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
let x be the length of one of the triangle's equal sides
:
x +x +(x+9) = 126
:
3x = 117
:
x = 39
:
the three sides of the triangle are 39 cm, 39 cm, 48 cm
:
the length of each of two equal sides is 39 cm
:
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